function emailCheck (emailStr)
{
	var checkTLD=1; //se 1 controlla la fine del dominio (.it,.com,...)
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/; //serve per il controllo del formato aaaa@fffff
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]"; //serve a controllare i caratteri speciali
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")"; //se l'utente e' fra "" allora non controllo i caratteri speciali
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/; //nel caso in cui l'indirizzo sia stato specificato con IP
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);

	if (matchArray==null) return false;

	var user=matchArray[1];
	var domain=matchArray[2];

	// Start by checking that only basic ASCII characters are in the strings (0-127).
	for (i=0; i<user.length; i++)
	{
		if (user.charCodeAt(i)>127) return false;
	}

	for (i=0; i<domain.length; i++)
	{
		if (domain.charCodeAt(i)>127) return false;
	}

	// See if "user" is valid
	if (user.match(userPat)==null) return false;

	/* if the e-mail address is at an IP address (as opposed to a symbolic
	host name) make sure the IP address is valid. */

	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255) return false;
		}
		return true;
	}

	// Domain is symbolic name.  Check if it's valid.
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++)
	{
		if (domArr[i].search(atomPat)==-1) return false;
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) return false;

	// Make sure there's a host name preceding the domain.
	if (len<2) return false;

	// If we've gotten this far, everything's valid!
	return true;
}

function getAlertMsg(msgCode,lang)
{
	IT_NO_FILE_SPECIFIED= "E' necessario specificare un file.";
	IT_NO_SHARP_ALLOWED= "Il nome del file non deve contenere il carattere '#'.";
	IT_NO_NAME_SPECIFIED= "E' necessario specificare il nome.";
	IT_TOO_LONG_NAME= "Il campo 'nome' puo' contenere al piu' 30 caratteri.";
	IT_NO_SURNAME_SPECIFIED= "E' necessario specificare il cognome.";
	IT_TOO_LONG_SURNAME= "Il campo 'cognome' puo' contenere al piu' 30 caratteri.";
	IT_NO_MAIL_SPECIFIED= "E' necessario specificare l'indirizzo e-mail.";
	IT_TOO_LONG_MAIL= "Il campo 'mail' puo' contenere al piu' 100 caratteri.";
	IT_WRONG_MAIL_FORMAT= "Il campo 'mail' non pare avere un formato corretto.";
	IT_NO_EXPERIENCES_SPECIFIED= "E' necessario specificare se si possiedono o meno esperienze lavorative.";
	IT_NO_TITLE_SPECIFIED= "E' necessario selezionare un titolo di studio.";
	IT_NO_AREA_SPECIFIED= "E' necessario selezionare un'area di esperienza.";
	IT_SPECIAL_CHAR_NAME= "Il campo 'nome' non puo' contenere i caratteri *,\\\,/,:,?,\",<,>,|,#,$";
	IT_SPECIAL_CHAR_SURNAME= "Il campo 'cognome' non puo' contenere i caratteri *,\\\,/,:,?,\",<,>,|,#,$";
	IT_PRIVACY_CONDITIONS= "Non hai accettato la condizioni sulla privacy.";
	
	EN_NO_FILE_SPECIFIED= "You must specify a file.";
	EN_NO_SHARP_ALLOWED= "File name cannot contain character '#' or '$'.";
	EN_NO_NAME_SPECIFIED= "You must specify your name.";
	EN_TOO_LONG_NAME= "Field 'name' cannot contain more than 30 characters.";
	EN_NO_SURNAME_SPECIFIED= "You must specify your surname.";
	EN_TOO_LONG_SURNAME= "Field 'surname' cannot contain more than 30 characters.";
	EN_NO_MAIL_SPECIFIED= "You must specify your e-mail.";
	EN_TOO_LONG_MAIL= "Field 'mail' cannot contain more than 100 characters.";
	EN_WRONG_MAIL_FORMAT= "Field 'mail' doesn't seem to be in a correct format.";
	EN_NO_EXPERIENCES_SPECIFIED= "You must specify whether you have any work experience.";
	EN_NO_TITLE_SPECIFIED= "You must specify an educational background.";
	EN_NO_AREA_SPECIFIED= "You must specify a work experience.";
	EN_SPECIAL_CHAR_NAME= "Field 'name' cannot contain any of the following characters: *,\\\,/,:,?,\",<,>,|,#,$";
	EN_SPECIAL_CHAR_SURNAME= "Field 'surname' cannot contain any of the following characters: *,\\\,/,:,?,\",<,>,|,#,$";
	EN_PRIVACY_CONDITIONS= "You didn't agree with the privacy conditions.";
	
	return eval(lang + "_" + msgCode);
}

function CheckForm(myform,lang)
{
	if (trimSpacesString(myform.blob)=="")
	{
		myform.blob.focus();
		alert(getAlertMsg("NO_FILE_SPECIFIED",lang));
	}
	else if ((myform.blob.value.indexOf("#"))>=0 || (myform.blob.value.indexOf("$"))>=0)
	{
		myform.blob.focus();
		alert(getAlertMsg("NO_SHARP_ALLOWED",lang));
	}
	else if (trimSpacesString(myform.nome)=="")
	{
		myform.nome.focus();
		alert(getAlertMsg("NO_NAME_SPECIFIED",lang));
	}
	else if (myform.nome.value.length>30)
	{
		myform.nome.focus();
		alert(getAlertMsg("TOO_LONG_NAME",lang));
	}
	else if (trimSpacesString(myform.cognome)=="")
	{
		myform.cognome.focus();
		alert(getAlertMsg("NO_SURNAME_SPECIFIED",lang));
	}
	else if (myform.cognome.value.length>30)
	{
		myform.cognome.focus();
		alert(getAlertMsg("TOO_LONG_SURNAME",lang));
	}
	else if (trimSpacesString(myform.mail)=="")
	{
		myform.mail.focus();
		alert(getAlertMsg("NO_MAIL_SPECIFIED",lang));
	}
	else if (myform.mail.value.length>100)
	{
		myform.mail.focus();
		alert(getAlertMsg("TOO_LONG_MAIL",lang));
	}
	else if (emailCheck(myform.mail.value)==false)
	{
		myform.mail.focus();
		alert(getAlertMsg("WRONG_MAIL_FORMAT",lang));
	}
	else if (!(myform.esp_prec_radio[0].checked) && !(myform.esp_prec_radio[1].checked))
	{
		alert(getAlertMsg("NO_EXPERIENCES_SPECIFIED",lang));
	}
	else if ((myform.esp_prec_radio[1].checked) && (myform.titolo.options[myform.titolo.selectedIndex].value==""))
	{
		myform.titolo.focus();
		alert(getAlertMsg("NO_TITLE_SPECIFIED",lang));
	}
	else if ((myform.esp_prec_radio[0].checked) && (myform.area.options[myform.area.selectedIndex].value==""))
	{
		myform.area.focus();
		alert(getAlertMsg("NO_AREA_SPECIFIED",lang));
	}
	else if (myform.nome.value.indexOf("*")!=-1 ||
			 myform.nome.value.indexOf("\\")!=-1 ||
			 myform.nome.value.indexOf("/")!=-1 ||
			 myform.nome.value.indexOf(":")!=-1 ||
			 myform.nome.value.indexOf("?")!=-1 ||
			 myform.nome.value.indexOf("\"")!=-1 ||
			 myform.nome.value.indexOf("\>")!=-1 ||
			 myform.nome.value.indexOf("\<")!=-1 ||
		  	 myform.nome.value.indexOf("$")!=-1 ||
			 myform.nome.value.indexOf("#")!=-1 ||
			 myform.nome.value.indexOf("|")!=-1
	        )
	{
		myform.nome.focus();
		alert(getAlertMsg("SPECIAL_CHAR_NAME",lang));
	}
	else if (myform.cognome.value.indexOf("*")!=-1 ||
			 myform.cognome.value.indexOf("\\")!=-1 ||
			 myform.cognome.value.indexOf("/")!=-1 ||
			 myform.cognome.value.indexOf(":")!=-1 ||
			 myform.cognome.value.indexOf("?")!=-1 ||
			 myform.cognome.value.indexOf("\"")!=-1 ||
			 myform.cognome.value.indexOf("\>")!=-1 ||
			 myform.cognome.value.indexOf("\<")!=-1 ||
		  	 myform.nome.value.indexOf("$")!=-1 ||
			 myform.nome.value.indexOf("#")!=-1 ||
			 myform.cognome.value.indexOf("|")!=-1
	        )
	{
		myform.cognome.focus();
		alert(getAlertMsg("SPECIAL_CHAR_SURNAME",lang));
	}
	else if (!myform.agree_check.checked)
	{
		myform.agree_check.focus();
		alert(getAlertMsg("PRIVACY_CONDITIONS",lang));
	}
	else myform.submit();

}